When we can't do real coffee, we do the following.
Use Nescafe Gold Blend Instant. Put 2 teaspoons into a mug.
Fill a separate mug 1/2 with milk 1/2 with water, then dump it into a saucepan.
Heat on really low heat until the top gets frothy.
Dump the milk over the coffee, but use a knife to keep the froth in the saucepan until the last minute.
Then dump the froth on top. Should be a great big dallop.
Makes instant VERY drinkable.
And it is great with some chocolate chip cookies.